May 26—PASCO, Wa. — Just in time for summer travel, a new nonstop flight from Pasco to California is beginning. Allegiant Air is celebrating its first direct nonstop flights from the Tri-Cities Airport to San Diego on Friday. The airline will fly between the two cities Fridays and Mondays, with current published one-way rates as low as $54. San Diego brings in vacationers to see the San Diego ...